Refreshing the asymmetric flow statistics cache using the CLI

This procedure shows how to use CLI commands to clear the asymmetric traffic statistics.

Important
To avoid depleting system resources and degrading appliance performance, enable this feature only while you are collecting and viewing the statistics needed to investigate asymmetric flows in the network.

The Network Security appliance collects and displays statistics for SYN-only flows and non-SYN-only asymmetric flows separately. To conserve system resources, each list can store no more than 100 statistics. After a list is filled to capacity, the appliance stops collecting statistics for that type of flow. Statistics collection for the flow resumes after you refresh the cache. The refresh operation clears both lists even if only one of the lists is full. Enabling statistics collection also clears both lists.

Prerequisites

Admin access to the Network Security appliance.

To refresh the asymmetric traffic statistics:

Clear the asymmetric traffic flow statistics:

hostname (config) # smartvision event-track asym-flow refresh